Building Lighting for Spawned Actors

I have a little test setup where when the player starts, a room (4 walls, a floor and ceiling) is built around them (spawn actor x6). When this is done, the room is lit up with a flat ambient light. It seems to me this is done because the game needs to re-calculate the lighting once the room is built. Is there any way to deal with this?

Found the same question here, but the “transform” mobility is set… I don’t know if there’s any other kind of mobility to set.

The issue isn’t the “Mobility” setting but the light setting. If you only have static lights then your lighting needs to be rebuilt. Make the light a dynamic light and your static mesh should be able to be lit by it.